Universität zu Köln

Endres, Christian P., Martin-Drumel, Marie-Aline ORCID: 0000-0002-5460-4294, Zingsheim, Oliver, Bonah, Luis, Pirali, Olivier, Zhang, Tianwei, Sanchez-Monge, Alvaro ORCID: 0000-0002-3078-9482, Moeller, Thomas, Wehres, Nadine, Schilke, Peter, McCarthy, Michael C., Schlemmer, Stephan, Caselli, Paola and Thorwirth, Sven (2021). SOLEIL and ALMA views on prototypical organic nitriles: C2H5CN. J. Mol. Spectrosc., 375. SAN DIEGO: ACADEMIC PRESS INC ELSEVIER SCIENCE. ISSN 1096-083X

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Abstract

The high resolution vibrational spectrum of ethyl cyanide (C2H5CN) has been investigated in the far-IR using synchrotron-based Fourier transform spectroscopy. The assignment was performed using the Automated Spectral Assignment Procedure (ASAP) allowing accurate rotational energy levels of the four lowest fundamental vibrations of the species, namely the v(13) = 1 @ 205.934099(8)cm(1), v(21) = 1 @ 212.141101(8)cm(1), v(20) = 1 @ 372.635293(15)cm(1), and v(12) = 1 @ 532.699617(16)cm(1) states, to be determined. The analysis not only confirms the applicability of the ASAP in the treatment of (dense) high-resolution infrared spectra but also reveals some of its limitations. Complementary to the infrared study, the pure rotational spectrum of C2H5CN was also studied in selected frequency ranges from 75 to 255 GHz. New observations of a prototypical high-mass star-forming region, G327.3-0.6, performed with the Atacama Large Millimeter Array show that vibrational satellites of C2H5CN can be very intense, of order several tens of Kelvin in units of brightness temperature. (C) 2020 Elsevier Inc. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Endres, Christian P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Martin-Drumel, Marie-Aline UNSPECIFIED orcid.org/0000-0002-5460-4294 UNSPECIFIED Zingsheim, Oliver UNSPECIFIED UNSPECIFIED UNSPECIFIED Bonah, Luis UNSPECIFIED UNSPECIFIED UNSPECIFIED Pirali, Olivier UNSPECIFIED UNSPECIFIED UNSPECIFIED Zhang, Tianwei UNSPECIFIED UNSPECIFIED UNSPECIFIED Sanchez-Monge, Alvaro UNSPECIFIED orcid.org/0000-0002-3078-9482 UNSPECIFIED Moeller, Thomas UNSPECIFIED UNSPECIFIED UNSPECIFIED Wehres, Nadine UNSPECIFIED UNSPECIFIED UNSPECIFIED Schilke, Peter UNSPECIFIED UNSPECIFIED UNSPECIFIED McCarthy, Michael C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schlemmer, Stephan UNSPECIFIED UNSPECIFIED UNSPECIFIED Caselli, Paola UNSPECIFIED UNSPECIFIED UNSPECIFIED Thorwirth, Sven UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-590059
DOI:	10.1016/j.jms.2020.111392
Journal or Publication Title:	J. Mol. Spectrosc.
Volume:	375
Date:	2021
Publisher:	ACADEMIC PRESS INC ELSEVIER SCIENCE
Place of Publication:	SAN DIEGO
ISSN:	1096-083X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ETHYL CYANIDE; VIBRATIONAL-SPECTRA; MICROWAVE-SPECTRUM; INTERNAL-ROTATION; HOT CORE; FREQUENCY-MEASUREMENT; PROPIONITRILE; SUBMILLIMETER; SPECTROSCOPY; MILLIMETER Multiple languages Physics, Atomic, Molecular & Chemical; Spectroscopy Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/59005